Root Access

3:22 AM

I like when you write an answer then forget about it, and someone upvotes it a while later, bring it back for you. I get that "oh did I really write that" positive feeling superuser.com/a/346398/89018

5

Dr. JKL

3:33 AM

I can imagine that feels good. :)

3:53 AM

morning

@Paul: that happens to me a lot now ;p

4:09 AM

admittedly partly cause i forget

4:25 AM

@Psycogeek No, it's not. The best you can do is affect a small part of our entire web, we're pretty decentralized as is so surely one "big" attack will not tear us down at all. Buttons to affect most of the population do not exist, unless you were to plug out the root servers / routers which are really inaccessible and you would have to plug out all of them despite them being unreachable.

And even when such scenarios happen, it doesn't make the money at the banks just disappear, worst case a small part is back in the internet age but surely most of the internet is not affected. See how hard it is to take down government sites and such, given the amount of people you need for that and you won't get the equal amount of people to target the internet itself. The following planned global blackout is merely a bluff, surely they don't have access to all the mentioned social networks.

And well, there are some security leaks which result in an occasional data dump being gathered, but it's not that it's easy to just get your data from everywhere. And even when you gain access to a certain top-level server, you can be assured that the chance is relatively high that your access to it won't stay open overly long. There are really wicked intrusion detection systems (opens-source Snorby interfaces with 3 and has a demo, but there are more sophisticated ones.

Oh hi, you did a scan on a certain subset of ports and/or tried a set of known exploits, we are gonna block you and analyze your traffic towards us...

studiohack

4:42 AM

According to SpeedFan, my Temp3 is -128C. OH RLY?!

lol

@studiohack: thats a little cold

studiohack

@JourneymanGeek lol yes it is :P

7:39 AM

@studiohack Yeah I use cryo too. Do you find the electrons slow down too much at that temp?

@Paul, they speed up ;)

7:57 AM

As you approach zero K you are taking all the energy out of the system. I wonder if anyone passing with a better knowledge of physics can figure out the cut-off before lowering temperature has a negative impact against being able to clock higher

You'd also need to worry about parts failure

IIRC some motherboards have a specific setting for booting when excessively cooled

@Paul, I don't think there is some phyiscal thing that slows/breaks when the computer is very cold. As a practical matter, thermal contraction may kill the machine.

Zero K is absolute zero, as I understand it, an absence of energy in a system by definition. That is -273C. Anything, computer or otherwise, will cease to function at this point (provided you broke a bunch of other physical laws to get it there)

No. Conductivity increases as temperature decreases. Superconductors work at very low temperatures (one of the first superconducting materials did so at 4.2 K, very close to 0)

Electrons flowing through a superconductor do not dissipate, meaning that the temperature of the conductor does not rise (can remain as close to zero K as nessisar)

Ah cool

So the answer is, "a lot colder than -128C"

Presumably I am right in thinking that an electron cannot remain mobile at 0K though?

8:06 AM

ya

0K is impossible. At anything above that I don't see why not...

(they can go at the speed of light at 4.2K, don't see why they would slow down...)

It occurs to me that I have no idea how electrons flow through a Bose-Einstein condensate, so that might be the point at which it cannot get colder and still have conductors.

9:13 AM

@TomWijsman I agree but The web in the US was dependant on few Major hub locations, if it was routed through 1500 locations it would have 1500 hops to do anything, and it would be crippled in that respect. My Paper Man scenario is not about effecting the whole system, or the whole banks, or taking out a whole country. It is about the power to effect a targeted person, or persons.

@Psycogeek Again, distribution. If you take out one most of the mayor locations, it still gets routed in a different way. It's not that the mayor hops have to be in the list of hops.

I dont know about now, but back 8 years ago it was dependant on 4 major hubs, that was "The Internet" layers of servers were dependant on them.

Of course it is easier to shut down a single person / group than that it is to shutdown a majority.

In the Paper man scenario the multitude of connetions to important things was used to kill the humans.

one at a time

youtube.com/…

9:23 AM

Change a medical record in the computer, to ignore a penicillin reaction, or even such lame things as having the cafeteria send the sick person a Peanut treat

Yeah, but that's just one hospital with only a few people affected. That is the same like the cruise ship crash in Italy, only caused by an individual / group.

But...

Hospital networks are usually disconnected from the outside, making it impossible to do it through the internet.

And changing a medical record goes back to Snorby.

Such servers also don't have a lot of exploitable services available, but rather only the required medical data services of which the protocols aren't widely known.

Many of the scenarios only require that the data be easily adjustable, that the items are controllable. that they are remotly controllable, be that a inter network or a traveling through the internet. I find that it is humourous to walk into a bank and have the bank mananger access my account directally on a computer that i just saw he was on The Net itself with 2 minutes ago.

Depends on the bank, our banks don't have that.

And I find it weird that you can actually view the screen, lack of security measures...

9:39 AM

I would think that our bank one of the biggest , did not even have an outside connection, hey it is humans :-) do we expect them to not be human , because they have a computer EDITED

@TomWijsman View a screen :-) people wear glasses , little convex mirrors like the ones in the bank . But this computer was at a desk, not behind a counter.

Still, there is no point visiting the internet at a desk/counter.